I'm an eye surgeon and take photos for patients with squint (crossed eyes) showing the eyes only. I also need to take photos to lid lesions which may be 3-10mm only. I already have the 18-105 lens. What is the best macro lens for me and my Nikon D90 camera?

I'm an eye surgeon and take photos for patients with squint (crossed eyes) showing the eyes only. I also need to take photos of lid lesions which may be only 3-10mm I already have the 18-105mm lens. What is the best macro lens for me and my Nikon D90?

I am an eye surgeon and take photoes for patients with squint (crossed eyes) showing the eyes only. I also need to take photoes to lid lesions which may be 3-10mm only. I already have the 18-105 lens. What is best macro lens for me and my Nikon D90 camera?

I'm an eye surgeon and take photos for patients with squint (crossed eyes) showing the eyes only. I also need to take photos to lid lesions which may be 3-10mm only. I already have the 18-105 lens. What is the best macro lens for me and my Nikon D90 camera?